We will be arriving in Rome from Civitavecchia at San Pietro station to visit the Vatican, but also want to go to the Colosseum and Trevi Fountain/Pantheon. Unfortunately we have only one day from our cruise ship to see a little of Rome.
How long should we allow to get from the Vatican to Colosseum, and how far away is the nearest metro station to the Vatican? I don't think my Mum would manage to walk the whole distance between the two places ( I have looked at a map), but I read another post from someone who recommended the walk from Termini to the Colosseum. What do others think?